TIMEDIFF () returns expr1 - expr2 expressed as a time value. In case you use a DATE value, the TIMESTAMPDIFF function treats it as a DATETIME value whose. functions. SELECT TIMESTAMPDIFF (<INTERVAL>,<timestampFrom>,<timestampTo>); If you want to find the difference between the first and the last timestamp of a given host ID, here you are: SELECT TIMESTAMPDIFF (MINUTE,MIN (pingtime),MAX (pingtime)) FROM yourTable WHERE. NOTE: This code shows that you cannot go past 24 hours in a time; it just wraps back around (with no error!): declare @FirstTime time (7) SET @FirstTime = '23:05' print @FirstTime Set @FirstTime = DATEADD (HOUR,1,@FirstTime) print @FirstTime. Need to find the datediff between more then two dates. SQL Server and most of the RDBMS do not allow to reference column at the same level. SQL Fiddle Demo;WITH cte AS ( SELECT *, ROW_NUMBER() OVER (PARTITION BY userid ORDER BY DATE ASC) AS rn FROM dbo. DATEDIFF (MONTH, DATEADD (DAY,-DAY (startDate)+1,startDate),DATEADD (DAY,-DAY (startDate)+1,endDate)) Share. This function accepts three parameters − the type of interval to measure (such as year, quarter, month, hour, minute, etc. No longer do you need to use temporary tables although using staging tables for further calculation could be required. Sql server supports adding and subtracting on Datetime data type, so you can simply do something like this: DECLARE @StartTime datetime = '2016-05-10 02:25:34. Timestamp DESC. The value can be a string literal or can be unquoted (e. Timediff() The timediff(A,B) routine returns a string that describes the amount of time that must be added to B in order to reach time A. DateDiff to find duration in minutes not working. DECLARE @null time; SET @null = '00:00:00'; SELECT DATEADD(SECOND, - DATEDIFF(SECOND, End_Time, Start_Time), @null) Reference: Time Difference Edit: As per the comment, if the difference between the end time and the start time might be negative, then you need to use a case statement as suchDescription. function. Bid DESC ) AS T ) SELECT Pair, AVG(DIFF) FROM. The resulting column will be in INTERVAL DAY TO SECOND. I'm new to working with SparkSQL and tried using the basic datediff function that other SQL syntaxes support I. This function is a synonym for timestampdiff function. 在 SQL Server 中，我們可以用 DATEDIFF() 函數取得兩個日期之間相差的時間間隔。 DATEDIFF() 語法 (Syntax) DATEDIFF(datepart, startdate, enddate) DATEDIFF() 執行後會返回一個正負樹的整數，表示 enddate - startdate 的時間間隔，datepart 參數則用來指定返回值. order_logs_created, DATEDIFF (HOUR ,NOW (),order_logs. How to calculate age in SQL view. Firebird - Calculate time difference between two rows. TIME TIMEDIFF (DATETIME expr1, DATETIME expr2) TIMEDIFF returns the difference between two DATETIMEs. g. How to calculate DateDiff in minutes correctly?Im using this: update client_invoices set x6 = datediff(x4, date_due) as an event in mysql but everytime they updates the server the "Event scheduler status" is turned off. 6. #1582 - Incorrect parameter count in the call to native function 'DATEDIFF'. This function occurs in the date function; it can take three parameters: interval, start date, and end date. of days between two given dates. Dive into its nuances, optimize its use, and transform the way you handle date-based tasks. YEAR. The unit argument can be MICROSECOND, SECOND, MINUTE, HOUR, DAY, WEEK, MONTH, QUARTER, or YEAR. user_id, TIMEDIFF(MIN(t. 1. startdate: The starting datetime value. date1, date2: a valid time, datetime, or parsable time/datetime string. Second parameter would be the last login time, which is already in the database. mysql> SELECT DATEDIFF ('2010-11-30 23:59:59', '2010-12-31'); -31. 3. dater) AS ChainStartTime FROM watermeter JOIN. It accepts any valid date or datetime expression. 1. It can be one of the following formats: Year:. Elegant, simple and effective. Bohemian ♦. The DATEDIFF function will return the difference in specified units (ex. Also, you can swap out the 'd' character for other dateparts, say if you wanted to find the date difference in months, years etc. 在 SQL Server 中，我們可以用 DATEDIFF() 函數取得兩個日期之間相差的時間間隔。 DATEDIFF() 語法 (Syntax) DATEDIFF(datepart, startdate, enddate) DATEDIFF() 執行後會返回一個正負樹的整數，表示 enddate - startdate 的時間間隔，datepart 參數則用來指定返回值. 0. Hope it helps. 1 Answer. 0 and above Returns the difference between two timestamps measured in units. The Technet article details the return value of the DateDiff Function - note that it's only int. I don't think this is really important to your question. You can even find the number of hours, minutes, seconds, and so on in terms of details in between the two. e. For example, to find duration in days between two dates you can use this code: SELECT DATEDIFF(d, StartTime, FinishTime) As you see DATEDIFF function has three parameters. There's no built-in function - but you could relatively easily write your own T-SQL stored function to calculate this - something like this: CREATE FUNCTION. The addition of these functions help with readability and simplicity. datediff. Both integer (int) and big integer (bigint) are numeric data types used to store integer values. #1752702. Dim TheDate As Date ' Declare variables. MySQL calculation minute using TIMEDIFF() 5. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. sql. *,DATEDIFF(mi,c2. The TIMEDIFF () function, on the other hand, compares the time, and therefore it returns a more precise result. DATEDIFF returns the count of the specified date part boundaries crossed between. First, here’s the syntax: DATEDIFF(expr1,expr2) Where expr1 is the first date,. For your requirement, you can use the following query. Edit the SQL Statement, and click "Run SQL" to see the result. The difference between startdate and enddate is expressed in days. The second parameter of DATEDIFF takes a datetime so your string is implicitly converted to a datetime. If the returned result is out of range for 32-bit. timediff function. October 10, 2023. 0. SELECT Column name, DATEDIFF ( (SELECT MAX (date) FROM table name WHERE Column name < b. createdon,c1. 2 days. CTE works wonder in such scenarios. SQL Server added the LAG and LEAD functions in T-SQL to help find a previous record related to the key fields. Where a. 2. PostgreSQL provides a datediff function to users. The DATEPART () function returns an integer value that represents a specified part of the date of a given date. ) and rest are two dates which you want to compare. Arguments. Connect and share knowledge within a single location that is structured and easy to search. The application passes in two parameters: a string representing the number of the. DateGroup. datediff (timestamp) function. The part can be the day of the date, month of the date, year of the date etc. its a countdown with the current date. –11. Specifies the first day of the week. DECLARE @NumberOfSeconds int SET @NumberOfSeconds = 3843 -- 1 hour, 4 minutes, 3 seconds SELECT @NumberOfSeconds AS 'seconds', CONVERT (varchar, DATEADD (second,. datediff¶ pyspark. datediff (timestamp) function. If you have any bad data which cannot be converted to date then who may have to filter out those data before converting to date. SubmittedDate = 2012-02-29 07:02:55. As stated in MySQL reference, DATEDIFF only takes days in account. Having that at hand, let us calculate the duration of their career with us so far: Calculating the number of weeks between two dates: SELECT CONCAT (first_name, ' ', last_name) AS full_name, employment_date, FLOOR (DATEDIFF (CURRENT_DATE, employment_date) / 7) AS weeks_difference FROM employees; In this example, the. Just in case you didn't understand the other answers, you can use DATEDIFF. sql server function. [GetBussinessDays] ('02/18/2021', '03/06/2021') -- 11 days CREATE or. The following shows the syntax of the DATEPART() function:. The next example will show the differences between two dates for each specific datapart and abbreviation. You can use the TIMEDIFF and HOUR function to just extract the hour. Sintaxis. Return the current time. 0000000' , '2014-03-19 07:20:00. Returns the difference between two timestamps measured in unit s. Multiply by 24 -- hours, multiply by 60 minutes, multiply by 60 -- seconds. Topic link icon Transact-SQL Syntax Conventions Syntax. Returns the difference between two timestamps measured in units. The function counts whole elapsed units based on UTC with a DAY being 86400 seconds. To convert “Datetime” values to Epoch values, we need to add them to the created table. select datediff (qtr, '1998-07-01', current_date); date_diff ----------- 40 (1 row) The following example joins the SALES and LISTING tables to calculate how many days after they were listed any tickets were sold for listings 1000 through 1005. it returns the difference in days if datepart is day. Share. format_datetime(timestamp, format) → varchar. 4 indicates strong similarity or identically SOUNDEX values. 0. So, we can use the TIMEDIFF() function with time values greater. datediff is always 1 number less than I need-5. I cannot figure out how to functional query in mysql, Can you give some information of how can achieve this with mysql query. In this article: Syntax. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. According to DB2's manual, DAYS () returns: "The result is 1 more than the number of days from January 1, 0001". 0. Current Date/Time. TableA -- please always specify schema (2) WHERE productDate < '20131209'; -- always use a semi-colon (3) -- and always use a non-regional, unambiguous date format (4) The reason this will be best is because it gives the optimizer the best chance to use an index on the. Id > S. Use SQL DATEDIFF to return the difference between the two dates based on a specified. October 10, 2023. The TIMEDIFF function returns the result of expr1 - expr2 expressed as a time value, with a return value of TIME type. 0. 1. t2 on t1. 8. I) if you need to calculate the elapsed time in seconds between two timestamp columns try this: SELECT extract ( day from (end_timestamp - start_timestamp) )*86400 + extract ( hour from (end_timestamp - start_timestamp) )*3600 + extract ( minute from (end_timestamp - start_timestamp) )*60 + extract ( second from (end_timestamp - start. SQL Server: -- Difference between Oct 02, 2011 and Jan 01, 2012 in years SELECT DATEDIFF (year, '2011-10-02', '2012-01-01'); -- Result: 1. The datepart argument can be microsecond, second, minute, hour, day, week, month, quarter, or year. SQL Server does not. The datepart argument can be microsecond, second, minute, hour, day, week, month, quarter, or year. With the help of the datediff. I know there is one inbuilt function DATEDIFF for this but i want some custom fractional difference like: sDate. Use UNIX_TIMESTAMP instead to do the sum. DATEDIFF_BIG () is a SQL function that was introduced in SQL Server 2016. The schema is SYSIBM. Once you have the date difference, you can use simple. g. 更多 MySQL 相關的日期時間函數在這邊. For example, here's how you would do that in SQL Server 2012 or later: --get the difference between two datetimes in the format: 'hh:mm:ss' CREATE FUNCTION getDateDiff (@startDate DATETIME, @endDate DATETIME) RETURNS. enddate: The ending datetime value. In this article: Syntax. Tham Gia Nhóm - Hỗ Trợ Lập Trình. The TIME_DIFF function allows you to find the difference between 2 time objects. 0 would return 0, but DATEDIFF(second, start_date, end_date) / 3600. In SQL Server: Like we do in SQL Server its much easier. See more linked questions. So DATEDIFF () returns the same result as in the previous example. 0 The documentation for DATEDIFF is available on MSDN: pyspark. answered Sep 27, 2011 at 19:42. Example 1 : Getting the differences between two specified time values where the time is specified in the format of YYYY-MM-DD HH-MM-SS. Invalid function type [TIMEDIFF] for window function. Edit the SQL Statement, and click "Run SQL" to see the result. You can then format the result however you like. If TIMEDIFF() returns -02:00:00, -00:05:00, or 00:04:00, then the record would. Difference will be calculated as startdate - enddate . prepareCall ("select TIMEDIFF ('2013-12-09 06:22:01','2013-08-07 05:22:01') as time_used from dual"). DATEDIFF function returns the difference of the specified datepart between the two dates (start date and end date). It shows us that there are 36 hours, 15 minutes, and 35 seconds between the two. The following table illustrates the valid parts of date in SQL Server: In this article, we learned how to do SQL subtract dates using the DATEDIFF function. forexData AS T WHERE T. However I want the output to be formatted as:If the endDate has a day part less than startDate, it will get pushed to the previous month, thus datediff will give the correct number of months. SELECT id, timeIn, timeOut, TIMEDIFF( timeOut, timeIn ) AS timeDifference FROM table WHERE TIMESTAMPDIFF( SECOND, timeOut, timeIn ) > 180000; This. SQL Server DATEPART() function overview. select datediff ('2019-02-01', '2019-01-27')/365. SQL: calculate a person's age on a certain date, based on date of birth. For example, only seconds, or only minutes or only hours. It counts the number of year boundaries between two dates. datediff¶ pyspark. Applies to: Databricks SQL Databricks Runtime 14. An expression that returns a value that is a built-in SMALLINT or. both YEAR and YEARS are valid). Datediff will return 1 (when you use dd or equivalent), because the day part of the 2nd date is one more than the 1st. Syntax TIMEDIFF ( time1, time2) 1. For an overview of all Transact-SQL date and time data types and functions, see Date and Time Data Types and Functions (Transact-SQL). Hot Network QuestionsOctober 15, 2014 at 4:50 pm. 000. Another example is to get the month of a. MySQL calculation minute using TIMEDIFF() 6. 0. userid AND c1. The MYSQL TIMEDIFF() function accepts two time or, date-time values as parameters, calculates the difference between them (argument1-argument2) and returns the result. Timediff in MySQL wrong values. TIMEDIFF () is useful for filtering records or data based on time criteria, such as selecting records within a specific time range. To do this, we need to create a calculated column using the DATEDIFF DAX function as seen in the diagram and DAX syntax below. 較舊的日期減較新的日期會得到負數：. The SQL DATEDIFF () function is an in-built function in SQL that is used to return the difference (as a signed integer value) between two dates or times. timestamp AS timediff FROM foo t1 inner join foo. Weeks, quarters, and years follow from that. The WEEK_OF_YEAR_POLICY session parameter controls how the WEEK and YEAROFWEEK functions behave. Use DATEDIFF(DAY, column, GETDATE()). The datepart passed to DATEDIFF will control the resolution of the output. MS Sql Datediff Function. Actually, the marked answer originally produced wrong results for milliseconds 1 - 99: Example 1 second, 27 milliseconds: DATEDIFF % 1000 will return 27. Now let us go to next question regarding difference between GETDATE and CURRENT_TIMESTAMP. Now let’s find the number of months between the dates of the order of ‘Maserati’ and ‘Ferrari’ in the table using DATEDIFF () function. just substitute StartDate and EndDate for your column names, and tableName for the actual table name. DATEDIFF uses the following cutoff points to calculate those intervals:. TheDate = InputBox ("Enter a date") Msg = "Days from today: " & DateDiff ("d", Now, TheDate) MsgBox Msg. To find the date difference in minutes from the given DateTime values, use the following steps: - First, find the “date_diff” in days and multiply it with “24”. timediff. 6222691' DECLARE @date2 datetime2 = '2022-01-14 12:32:07. Solution 1 (difference in seconds): The result is: Discussion: To calculate the difference between the arrival and the departure in T-SQL, use the DATEDIFF (datepart, startdate,. SQL Server Calculate during 07H00 and 23H00 during weekdays. datediff. You can put the above code in a method that you can call from your LINQ query. e. SQL Server 2012 : DATEDIFF function in terms of years, days and months. 6 Answers. For neatness, I've also rounded to. But this calculation is done only in one unit at a time. It returns an integer value that represents the number of specified date or time units between two dates or times. I need to get scenario value when timediff(c2,c3) > 30 MIN SELECT scenario, rowcreatedctime,eventtime FROM `chat_assist_session_request` LIMIT 1 scenario rowcreatedtime eventtime scen1 2014-09-02 09:00:00 2014-09-02 09:45:00 scen2 2014-09-02 10:00:00 2014-09-02 10:13:00 I would like to query a database using sql to show the difference in time between id 1,2,3 and so on. 000' SELECT CAST (@EndTime - @StartTime as Time) As TimeDifference. 5. TIMESTAMPDIFF ( numeric-expression string-expression. These functions assist in comparing, adding, subtracting, and getting the current date and time, respectively. 指定された日付または時刻の部分に基づいて、2つの日付、時刻、またはタイムスタンプ式の差を計算します。この関数は、3番目の引数から2番目の引数を減算した結果を返します。 datediff の代替です。 SELECT DATEDIFF (month,'2011-03-07' , '2021-06-24'); In this above example, you can find the number of months between the date of starting and ending. 0. In PostgreSQL, you can take the difference in years, multiply by 12 and add. You can't display more than 24 hours in a time format 00:00, so you need to choose a different way to display the output. If you have the string representation of a date, use DateTime. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. The default column name for the DATEDIFF function is DATE_DIFF. Note: As TT rightfully wrote in his comment,. : you're comparing dates with timestamps, and not whole days), you can. Here is a SQL script to demonstrate:Luckily, there’s a handy DATEDIFF function that can do that for you. 0. OR LOWER(CAST( "DATEDIFF(month, USER. In this article, Let us see a Spark SQL Dataframe example of how to calculate a Datediff between two dates in seconds, minutes, hours, days, and months using Scala language and functions like datediff(), unix_timestamp(), to_timestamp(), months_between(). datediff (to_date (String timestamp), to_date (String timestamp)) SELECT datediff (to_date ('2019-08-03'), to_date ('2019-08-01')) <= 2; to_date is unnecessary if the column is already in 'yyyy-mm-dd' format. The TIMESTAMPDIFF function allows its arguments to have mixed types e. Where a. Is there any way around this so the result of the query can go. Both arguments of this function must be of same type (either time or date-time) . The SQL DATEDIFF () is a function, and use to find the difference between two dates. SELECT DISTINCT LEAST (180, DAYS_BETWEEN (current_date, start_date)) as days FROM table2 where expire_date > current_date. order_logs_created) FROM order_logs. When you divide that by 365. 4 = Wednesday. The datepart passed to DATEDIFF will control the resolution of the output. DATEDIFF uses the datepart argument to calculate the number of intervals between two dates, rather than the actual amount of time between them. Returns the difference between two timestamps measured in unit s. date, c2. 0 as HoursRoundedToHalfHour, Casting a datetime value to float gives you the number of days since a particular date. If you want the difference in seconds, use datediff (): select username, avg (datediff (ss, start_date, end_date)) as avg_seconds. Specifically, it gets the difference between 2 dates with the results returned in date units specified as years, months days, minutes, seconds as a bigint value. The calculation is correct, and the output is easily interpretable. SQL Server: -- Difference between Oct 02, 2011 and Jan 01, 2012 in years SELECT DATEDIFF (year, '2011-10-02', '2012-01-01'); -- Result: 1. datepart 値を変数に指定することはできません。 また、'month' のように引用符で囲まれた文字列として指定することもできません。STEP 1: Calculate the difference between the Order date and Ship date to know how long it took. Calculates the difference in week numbers and year numbers, subtracts the week numbers and then multiplies the result by 2 to calculate number of non-workdays between the two dates. This example uses the current date to find the difference between the current date and a specific date. DATEDIFF SQL. Columns. Learn more about TeamsPySpark Timestamp Difference – Date & Time in String Format. datediff (end: ColumnOrName, start: ColumnOrName) → pyspark. The SQL DATEDIFF () function returns a long value specifying the number of time intervals between two specified dates . That will give you the average differences for each distinct value of col1. Examples below. Hallo All, I want to find the difference between two order dates, which have the order numbers 3 and 1 and write it to another column (named fark) for each Cust_id. DATEDIFF returns the count of the specified date part boundaries crossed. 0 would return 0, but DATEDIFF(second, start_date, end_date) / 3600. Hopefully this gets you pointed in the right direction! Thanks for response Eric TIMEDIFF also gives me time difference. 671'), 0), 114) to output 26:11:20:000 but instead it output 02:11:20:000. I have two columns that have time data that looks like "2017-12-06 18:50:27 +0000" . String concatenation will build '1' + ',' + '27'. Output of tip #1 — Code and screenshot by author. Returns datetime_expr2 - datetime_expr1, where datetime_expr1 and datetime_expr2 are date or datetime expressions. *, t2. startdate and enddate have to be in a format. to get the date one second before midnight of. This function allows you to obtain data from the previous record (based on an order criterion, which here is “ ORDER BY year ”). Time' How to repeat: ResultSet result = getConnection (). The datepart argument defines the part of the date/datetime in which you'd like to express the difference. function. Mysql datediff for datetime types. 1. . The syntax for DATEDIFF is pretty straightforward: DATEDIFF (datepart, startdate, enddate) Let’s explore the parameters used here: datepart: The unit of time you want to use for the calculation, like year, quarter, month, day, or even smaller units like hour, minute, or second. 789'}; SELECT LEFT( CONVERT(varchar(10), DATEADD(second, DATEDIFF(second, @then, GETDATE()), {d '1900-01-01'}), 8), 5); Here's what it does: Calculates the difference in seconds between @then and now (GETDATE()) Adds that number of seconds to 1900-01-01. Passing DATEDIFF interval as user defined function argument?I came across an easier way of solving this issue. The MySQL TIMEDIFF() function returns the difference between two time or datetime values. If you need the number of fractional hours, you can use DATEDIFF at a higher resolution and divide the result: DATEDIFF(second, start_date, end_date) / 3600. This function was run on. learn sql tutorial. The format is: (+|-)YYYY-MM-DD HH:MM:SS. DATEDIFF Examples Using All Options. You'd probably need to tweak this to handle the. You could try the following. The function returns the result of subtracting the second argument from the third argument. To get the difference in. DATEDIFF() returns (expr1 – expr2) expressed as a value in days from one date to the other. Definition and Usage. 1. So, the difference between Jan 1 20015 and Dec 31 2016 is 1 year. SELECT DATEDIFF(MINUTE,job_start,job_end) MINUTE obviously returns the difference in minutes, you can also use DAY, HOUR, SECOND, YEAR (see the books online link for the full list). Therefore you have to multiply the above value by 1440 (=24*60, the number of minutes per day). datediff with conditions in select statment. SELECT order_logs. For instance. SQL Command Syntax; SQL Commands List; SQL Functions List; Comparison Operators and Functions. Here is a brief and simplified extract of my current dataset: All my users currently have a start time and end time for various actions they complete. Teams. The TO_DAYS () function can be used only with dates within the Gregorian calendar. Edit the SQL Statement, and click "Run SQL" to see the result. Finding the interval between dates in SQL Server. To achieve this, we will utilize the MySQL DATEDIFF () function to calculate their ages: SELECT CONCAT (first_name, ' ', last_name) AS full_name, birth_date, FLOOR (DATEDIFF (CURRENT_DATE, birth_date) / 365) AS age FROM employees; In this query, the DATEDIFF () function calculates the number of days between the current date and. #. Share. – The syntax for DATEDIFF is pretty straightforward: DATEDIFF (datepart, startdate, enddate) Let’s explore the parameters used here: datepart: The unit of time you want to use for the calculation, like year, quarter, month, day, or even smaller units like hour, minute, or second. In your case PHP. Applies to: Databricks SQL preview Databricks Runtime 11. TIMEDIFF () is essential for time-based analysis by enabling you to measure the duration of events or actions. MySQL timediff function does not give proper output. mysql Timediff() function returns 0. (timestamp) function. enddate)) AS timediff FROM MYTABLE t GROUP BY t. select (test_time - sysdate)*24*60 from test; This value is negative if test_time is lies in. timediff¶. To track the shipping turnaround time, we can use the DATEDIFF () function. DATE_FORMAT () Format date as specified. Applies to: Databricks Runtime 14. If you want the result in days/hours/minutes you can use modulus division:1 Answer. e datediff (minute,start_time,end_time), but that yielded the error:I believe you want: Select id, datediff (day, min (hire) max (hire)) as Difference From Employees group by id having count (terminated) < count (*) -- at least one NULL value. In Access, 12:51 AM is equal to 00:51 AM. Syntax. . Improved version, using an arbitrary date. Tip: Also look at the SOUNDEX () function. id, MAX (S. Id AND t. This function is a synonym for timestampdiff function. Sorted by: 21. Each day is 1 integer. This function is a synonym for. DATEDIFF Examples Using All Options. I want to calculate the exact date difference in month wise. SQL DATEDIFF — Now & Then. For example: the difference between 20180115 to 20180220 is 36 days. For example, the number of minutes between two datetime values evaluates the date component as well as the time component, and adds 1440 minutes for each day difference. First, create and populate sample table (Please save us this step in your future questions):CREATE TABLE face_login_logout (. SELECT DATEDIFF (second, '2005-12-31 23:59:59. DatePart. , between two dates. Note: As TT rightfully wrote in his comment,. I have a simple query which calculates time difference between two datetime as below: SELECT TIMEDIFF ( '2012-08-19 08:25:13', '2012-07-19 18:05:52' ); Output: 734:19:21. 2 Answers. Mysql timediff returning two different values. Table 9. Invalid function type [DATEDIFF] for window function. TIME_TO_SEC (TIMEDIFF (endDate, startDate))/3600 as hours.